Thermal performance analysis of slinky-coil ground-air heat exchanger system with sand-bentonite as backfilling material

2019 ◽  
Vol 202 ◽  
pp. 109351 ◽  
Author(s):  
Kamal Kumar Agrawal ◽  
Rohit Misra ◽  
Ghanshyam Das Agrawal
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Thermal Performance

Entropy and thermal performance analysis of PCM melting and solidification mechanisms in a wavy channel triplex-tube heat exchanger

2021 ◽  
Vol 165 ◽  
pp. 52-72
Author(s):  
Amin Shahsavar ◽  
Amir Hossein Majidzadeh ◽  
Roohollah Babaei Mahani ◽  
Pouyan Talebizadehsardari
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Thermal Performance ◽  
Wavy Channel ◽  
Tube Heat Exchanger ◽  
Melting And Solidification

Performance Analysis of Multi-Pass Cross-Flow Heat Exchangers

2018 ◽  
Author(s):  
Kiran Lankalapalli ◽  
Ahmed ElSawy ◽  
Stephen Idem
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Thermal Performance ◽  
Heat Exchangers ◽  
Cross Flow ◽  
Threshold Value ◽  
Finned Tube ◽  
Flow Heat ◽  
Rate Ratios ◽  
Side Flow

A steady state sensible performance analysis of multi-pass cross-flow finned-tube heat exchangers is reported. The investigation considers various flow circuiting, such as counter cross-flow, parallel cross-flow, and cross-flow where the tube-side flow is in parallel. A previously developed matrix approach is used to evaluate the heat exchanger performance in each tube pass. The equations required to model the thermal performance of these configurations are presented, and the thermal performance is compared for each type of flow circuiting. Thereafter a parametric study on cross-flow heat exchanger performance is performed by varying physically significant parameters such as number of transfer units (NTU) and capacity rate ratios, and the graphical results for each type of flow circuiting are presented both for both two-pass and three-pass arrangements. A consistent criterion is proposed for each case, wherein increasing the NTU beyond a certain threshold value does not significantly improve heat exchanger thermal performance.

Thermal performance analysis on the composition attributes of deep coaxial borehole heat exchanger for building heating

2020 ◽  
Vol 221 ◽  
pp. 110019 ◽  
Author(s):  
Yibin Huang ◽  
Yanjun Zhang ◽  
Yangyang Xie ◽  
Yu Zhang ◽  
Xuefeng Gao
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Thermal Performance ◽  
Borehole Heat Exchanger

Thermal performance analysis of a 1–5 TEMA E shell and coil heat exchanger operating with SWCNT–water nanofluid with varied nanoparticle concentration

2021 ◽  
Vol 43 (3) ◽  
Author(s):  
Luiz Umberto Rodrigues Sica ◽  
Adriano Akel Vasconcelos ◽  
José Alberto Reis Parise ◽  
Abdul Orlando Cárdenas Gómez ◽  
Enio Pedone Bandarra Filho
Keyword(s):  
Heat Exchanger ◽  
Performance Analysis ◽  
Thermal Performance ◽  
Nanoparticle Concentration ◽  
Coil Heat Exchanger ◽  
Coil Heat
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